<template>
    <div class="login">
  <div class="title">欢迎登录</div>
    <van-form>
        <van-field
          v-model="username"
          name="用户名"
          label="用户名"
          placeholder="用户名"
          size="large"
          :rules="[{ required: true, message: '请填写用户名' }]"
        />
        <van-field
          v-model="password"
          type="password"
          name="密码"
          label="密码"
          placeholder="密码"
          size="large"
          :rules="[{ required: true, message: '请填写密码' },{validator: validatePassword,message: '密码长度至少为6位'}]"
        />
      <div style="margin-top: 16px;">
        <van-button round block type="primary" @click="onSubmit">登录</van-button>
      </div>
      <div class="footer">
      <span>没有账号,</span>
      <span class="register" @click="goRegister">去注册</span>
      </div>
    </van-form>
  </div>
</template>
<script>
import { ref, getCurrentInstance, onMounted } from 'vue'
import router from '../router/index';
export default {
  setup (props, cxt) {
    const { proxy } = getCurrentInstance()
    const username = ref('');
    const password = ref('');
    let loginInfo;
    const validatePassword = (val) => /\d{6}/.test(val);

    const onSubmit = async () => {
      let data = {username: username.value,password: password.value}
      loginInfo = await proxy.$axios.post('/login', data)
      // console.log(loginInfo);

      if (username.value != loginInfo.username || password.value != loginInfo.password + '') {
        proxy.$toast.fail('用户名或密码错误...');
      } else {
        localStorage.setItem('isLogin', JSON.stringify(true))
        localStorage.setItem('user', username.value)
        proxy.$toast.success('登录成功')
        router.push('/home')
      }
    }

    const goRegister = () => {
      router.push('/register')
    }

    onMounted(() => {
    });


    return {
      username,
      password,
      validatePassword,
      onSubmit,
      goRegister
    };
  },
}
</script>
<style scoped>
.login{
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: #eee;
  height: 100%;
}
.title{
  font-size: 1.75rem;
}
.van-form{
  height: 18.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.van-cell--large{
  margin: 0.625rem 0;
  border-radius: 0.5rem;
}
.footer{
    color: #ccc;
    text-align: center;
    font-size: 0.875rem;
    padding: 0.625rem 0;
}
.register{
  color: #aaa;
  font-weight: bold;
}
</style> 